/* ================================================================
   DroneGranada — hoja de estilo principal
   Dirección: oscuro con acento granate y geometría nazarí
   ================================================================ */

:root{
  --negro:#0d0a0b;
  --fondo:#100c0e;
  --fondo-2:#171114;
  --superficie:#1c1417;
  --superficie-2:#241a1e;
  --linea:rgba(255,225,220,.10);
  --linea-fuerte:rgba(255,225,220,.20);

  --granate:#a3223a;
  --granate-claro:#c9304d;
  --granate-suave:rgba(163,34,58,.16);
  --oro:#c8a15a;
  --oro-suave:rgba(200,161,90,.14);

  --texto:#f2ebe8;
  --texto-2:#c6b6b1;
  --texto-3:#9a8884;

  --radio:14px;
  --radio-s:9px;
  --radio-l:24px;
  --ancho:1200px;
  --ancho-texto:74ch;
  --sombra:0 18px 50px rgba(0,0,0,.55);
  --trans:.28s cubic-bezier(.4,0,.2,1);

  --display:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

body{
  margin:0;background:var(--fondo);color:var(--texto);
  font-family:var(--sans);font-size:17px;line-height:1.68;
  font-weight:400;letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}

h1,h2,h3,h4{margin:0 0 .5em;line-height:1.12;font-weight:400;letter-spacing:-.012em}
h1{font-family:var(--display);font-size:clamp(2.35rem,6.2vw,4.4rem);letter-spacing:-.02em}
h2{font-family:var(--display);font-size:clamp(1.85rem,4vw,2.9rem);letter-spacing:-.015em}
h3{font-family:var(--sans);font-size:clamp(1.12rem,2vw,1.35rem);font-weight:700;letter-spacing:-.01em}
h4{font-family:var(--sans);font-size:1.02rem;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
strong{font-weight:700;color:#fff}
small{font-size:.86rem}

.contenedor{width:100%;max-width:var(--ancho);margin:0 auto;padding:0 22px}
.contenedor-estrecho{width:100%;max-width:860px;margin:0 auto;padding:0 22px}

/* ---------- geometría nazarí ---------- */
.nazari{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%23a3223a' stroke-width='1' stroke-opacity='.30'%3E%3Cpath d='M60 6 74 20 94 20 94 40 108 54 94 68 94 88 74 88 60 102 46 88 26 88 26 68 12 54 26 40 26 20 46 20Z'/%3E%3Cpath d='M60 24 78 42 78 66 60 84 42 66 42 42Z'/%3E%3C/g%3E%3C/svg%3E");
  background-size:120px 120px;
}
.nazari--oro{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%23c8a15a' stroke-width='1' stroke-opacity='.22'%3E%3Cpath d='M60 6 74 20 94 20 94 40 108 54 94 68 94 88 74 88 60 102 46 88 26 88 26 68 12 54 26 40 26 20 46 20Z'/%3E%3Cpath d='M60 24 78 42 78 66 60 84 42 66 42 42Z'/%3E%3C/g%3E%3C/svg%3E");
}

/* ---------- cabecera ---------- */
.cinta{background:linear-gradient(90deg,var(--granate),#7d1a2c);color:#fff;font-size:.82rem;letter-spacing:.03em}
.cinta .contenedor{display:flex;gap:18px;align-items:center;justify-content:center;flex-wrap:wrap;padding-top:8px;padding-bottom:8px;text-align:center}
.cinta a{border-bottom:1px solid rgba(255,255,255,.45)}
.cinta a:hover{border-bottom-color:#fff}

.cabecera{position:sticky;top:0;z-index:80;background:rgba(16,12,14,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--linea)}
.cabecera__fila{display:flex;align-items:center;gap:20px;min-height:76px}
.logo{display:flex;align-items:baseline;gap:.16em;flex-shrink:0;font-weight:800;
  font-size:clamp(1.24rem,2.4vw,1.62rem);letter-spacing:-.035em;line-height:1;white-space:nowrap}
.logo__marca{color:#e6dedb;display:inline-flex;align-items:baseline}
.logo__ciudad{color:var(--granate-claro)}
.logo__o{display:inline-block;width:.8em;height:.8em;margin:0 .03em;flex-shrink:0;transform:translateY(.02em)}
.logo__o svg{width:100%;height:100%;display:block}
.pie__logo .logo{font-size:1.5rem}

.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a,.nav button{
  display:inline-flex;align-items:center;gap:6px;padding:10px 13px;border:0;background:none;
  font-size:.93rem;font-weight:600;color:var(--texto-2);border-radius:var(--radio-s);cursor:pointer;
  transition:color var(--trans),background var(--trans);
}
.nav a:hover,.nav button:hover,.nav a[aria-current="page"]{color:#fff;background:rgba(255,255,255,.06)}
.nav__flecha{width:10px;height:10px;transition:transform var(--trans)}
.nav__item{position:relative}
.nav__item[data-abierto="si"] .nav__flecha{transform:rotate(180deg)}

.mega{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(-6px);
  width:min(880px,88vw);background:var(--superficie);border:1px solid var(--linea-fuerte);
  border-radius:var(--radio-l);box-shadow:var(--sombra);padding:26px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
  opacity:0;visibility:hidden;transition:opacity var(--trans),transform var(--trans),visibility var(--trans);
}
.nav__item[data-abierto="si"] .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega h4{color:var(--oro);font-size:.76rem;text-transform:uppercase;letter-spacing:.14em;margin-bottom:12px}
.mega ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.mega ul a{display:block;padding:7px 10px;font-size:.9rem;font-weight:500;color:var(--texto-2);border-radius:8px}
.mega ul a:hover{color:#fff;background:var(--granate-suave)}

.btn-menu{display:none;margin-left:auto;background:none;border:1px solid var(--linea-fuerte);border-radius:10px;padding:10px 12px;cursor:pointer}
.btn-menu span{display:block;width:19px;height:2px;background:var(--texto);margin:4px 0;transition:var(--trans)}

.movil{display:none;border-top:1px solid var(--linea);background:var(--fondo-2);max-height:78vh;overflow-y:auto;padding:12px 0 26px}
.movil[data-abierto="si"]{display:block}
.movil details{border-bottom:1px solid var(--linea)}
.movil summary{list-style:none;cursor:pointer;padding:15px 4px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.movil summary::-webkit-details-marker{display:none}
.movil summary::after{content:"+";color:var(--granate-claro);font-size:1.4rem;line-height:1}
.movil details[open] summary::after{content:"–"}
.movil details ul{list-style:none;margin:0;padding:0 0 12px}
.movil details ul a{display:block;padding:9px 12px;color:var(--texto-2);font-size:.95rem}
.movil > a{display:block;padding:15px 4px;font-weight:700;border-bottom:1px solid var(--linea)}

/* ---------- botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:100px;font-weight:700;font-size:.95rem;letter-spacing:.01em;
  border:1px solid transparent;background:transparent;cursor:pointer;transition:var(--trans);text-align:center;
}
.btn svg{width:17px;height:17px;flex-shrink:0}
.btn--principal{background:var(--granate);color:#fff;box-shadow:0 10px 26px rgba(163,34,58,.34)}
.btn--principal:hover{background:var(--granate-claro);transform:translateY(-2px);box-shadow:0 14px 32px rgba(163,34,58,.44)}
.btn--linea{border-color:var(--linea-fuerte);color:var(--texto)}
.btn--linea:hover{border-color:var(--oro);color:#fff;background:var(--oro-suave)}
.btn--wa{background:#1f8f4e;color:#fff}
.btn--wa:hover{background:#26a85c;transform:translateY(-2px)}
.btn--peq{padding:10px 18px;font-size:.87rem}
.btn-fila{display:flex;gap:13px;flex-wrap:wrap}

/* ---------- portada / cabeceras ---------- */
.hero{position:relative;min-height:min(90vh,760px);display:flex;align-items:flex-end;overflow:hidden;background:var(--negro)}
.hero__media{position:absolute;inset:0}
.hero__media img,.hero__media video{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.hero__media img{opacity:0;animation:pase 21s infinite;filter:saturate(.85) contrast(1.05)}
.hero__media img:nth-child(1){animation-delay:0s}
.hero__media img:nth-child(2){animation-delay:7s}
.hero__media img:nth-child(3){animation-delay:14s}
@keyframes pase{0%{opacity:0;transform:scale(1.04)}6%{opacity:1}30%{opacity:1;transform:scale(1.11)}38%{opacity:0}100%{opacity:0}}
.hero__velo{position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(13,10,11,.72) 0%,rgba(13,10,11,.42) 35%,rgba(13,10,11,.93) 100%),
  radial-gradient(80% 62% at 12% 88%,rgba(163,34,58,.42) 0%,transparent 68%)}
.hero__contenido{position:relative;z-index:2;padding-top:120px;padding-bottom:72px;width:100%}
.hero h1{max-width:17ch;margin-bottom:.35em;text-shadow:0 2px 30px rgba(0,0,0,.5)}
.hero__sub{font-size:clamp(1.02rem,2.1vw,1.24rem);color:var(--texto-2);max-width:58ch;margin-bottom:2em}
.hero .btn-fila{margin-bottom:2.6em}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:.74rem;font-weight:800;
  text-transform:uppercase;letter-spacing:.18em;color:var(--oro);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--oro);opacity:.7}

.tiras{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--linea);padding-top:22px}
.tiras div{flex:1 1 190px;padding:4px 20px 4px 0}
.tiras b{display:block;font-family:var(--display);font-size:1.55rem;color:#fff;line-height:1.1}
.tiras span{font-size:.83rem;color:var(--texto-3)}

/* cabecera interior */
.portadilla{position:relative;overflow:hidden;background:var(--fondo-2);border-bottom:1px solid var(--linea)}
.portadilla__media{position:absolute;inset:0}
.portadilla__media img{width:100%;height:100%;object-fit:cover;opacity:.6;filter:saturate(.85)}
.portadilla__velo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,10,11,.96) 0%,rgba(13,10,11,.86) 42%,rgba(13,10,11,.55) 100%),linear-gradient(180deg,rgba(13,10,11,.5),rgba(13,10,11,.85)),radial-gradient(70% 70% at 90% 12%,rgba(163,34,58,.3),transparent 62%)}
.portadilla__contenido{position:relative;z-index:2;padding-top:78px;padding-bottom:62px}
.portadilla h1{max-width:20ch;font-size:clamp(2rem,5vw,3.5rem)}
.portadilla__sub{font-size:1.08rem;color:var(--texto-2);max-width:62ch;margin-top:.4em}

.miga{font-size:.8rem;color:var(--texto-3);margin-bottom:20px}
.miga a{color:var(--texto-3)}
.miga a:hover{color:var(--oro)}
.miga span{margin:0 7px;opacity:.5}

/* ---------- secciones ---------- */
.seccion{padding:88px 0;position:relative}
.seccion--fondo{background:var(--fondo-2)}
.seccion--negra{background:var(--negro)}
.seccion__cab{max-width:70ch;margin-bottom:46px}
.seccion__cab p{color:var(--texto-2);font-size:1.05rem}
.seccion__cab--centro{margin-left:auto;margin-right:auto;text-align:center}
.seccion__cab--centro .eyebrow{justify-content:center}

/* ---------- rejillas ---------- */
.rejilla{display:grid;gap:20px}
.rejilla--2{grid-template-columns:repeat(2,1fr)}
.rejilla--3{grid-template-columns:repeat(3,1fr)}
.rejilla--4{grid-template-columns:repeat(4,1fr)}

.tarjeta{
  position:relative;background:var(--superficie);border:1px solid var(--linea);
  border-radius:var(--radio);overflow:hidden;transition:var(--trans);display:flex;flex-direction:column;
}
.tarjeta:hover{border-color:var(--granate);transform:translateY(-4px);box-shadow:var(--sombra)}
.tarjeta__img{aspect-ratio:16/10;overflow:hidden;background:var(--negro)}
.tarjeta__img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.tarjeta:hover .tarjeta__img img{transform:scale(1.06)}
.tarjeta__cuerpo{padding:22px;display:flex;flex-direction:column;gap:9px;flex:1}
.tarjeta__cuerpo p{font-size:.94rem;color:var(--texto-2);margin:0}
.tarjeta__mas{margin-top:auto;padding-top:12px;font-size:.85rem;font-weight:700;color:var(--granate-claro);display:inline-flex;align-items:center;gap:7px}
.tarjeta:hover .tarjeta__mas{gap:11px}
.tarjeta__etiqueta{
  position:absolute;top:13px;left:13px;z-index:2;background:rgba(13,10,11,.82);backdrop-filter:blur(6px);
  border:1px solid var(--linea-fuerte);border-radius:100px;padding:5px 12px;font-size:.72rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--oro);
}

.icono{
  width:46px;height:46px;border-radius:12px;background:var(--granate-suave);border:1px solid rgba(163,34,58,.3);
  display:flex;align-items:center;justify-content:center;color:var(--granate-claro);margin-bottom:4px;
}
.icono svg{width:22px;height:22px}

/* tarjeta de flota */
.flota-tarjeta .tarjeta__img{aspect-ratio:4/3;background:linear-gradient(160deg,#1e1519,#120d0f);display:flex;align-items:center;justify-content:center;padding:16px}
.flota-tarjeta .tarjeta__img img{object-fit:contain;width:100%;height:100%}

/* listas */
.lista{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.lista li{position:relative;padding-left:28px;color:var(--texto-2);font-size:.97rem}
.lista li::before{
  content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;transform:rotate(45deg);
  background:var(--granate);border-radius:2px;
}
.lista--oro li::before{background:var(--oro)}

.chips{display:flex;flex-wrap:wrap;gap:9px;list-style:none;margin:0;padding:0}
.chips a,.chips span{
  display:inline-block;padding:8px 15px;border:1px solid var(--linea-fuerte);border-radius:100px;
  font-size:.86rem;color:var(--texto-2);transition:var(--trans);
}
.chips a:hover{border-color:var(--granate);color:#fff;background:var(--granate-suave)}

/* ---------- bandas con vídeo ---------- */
.banda{position:relative;overflow:hidden;background:var(--negro)}
.banda__media{position:absolute;inset:0}
.banda__media video,.banda__media img{width:100%;height:100%;object-fit:cover;opacity:.4}
.banda__velo{position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,10,11,.95) 0%,rgba(13,10,11,.72) 55%,rgba(163,34,58,.3) 100%)}
.banda__contenido{position:relative;z-index:2;padding:92px 0;max-width:60ch}
.banda__contenido p{color:var(--texto-2)}

/* ---------- dos columnas ---------- */
.duo{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.duo--inv .duo__media{order:-1}
.duo__media img{border-radius:var(--radio);width:100%}
.duo__media{position:relative}
.duo__media::after{content:"";position:absolute;inset:0;border-radius:var(--radio);box-shadow:inset 0 0 0 1px var(--linea-fuerte)}

/* ---------- texto largo ---------- */
.prosa{max-width:var(--ancho-texto)}
.prosa h2{margin-top:1.9em}
.prosa h2:first-child{margin-top:0}
.prosa h3{margin-top:1.7em;color:#fff}
.prosa p,.prosa li{color:var(--texto-2)}
.prosa ul,.prosa ol{padding-left:1.15em;margin:0 0 1.2em}
.prosa li{margin-bottom:.5em}
.prosa a{color:var(--granate-claro);border-bottom:1px solid rgba(201,48,77,.35)}
.prosa a:hover{border-bottom-color:var(--granate-claro)}
.prosa blockquote{
  margin:1.8em 0;padding:20px 26px;border-left:3px solid var(--oro);background:var(--superficie);
  border-radius:0 var(--radio-s) var(--radio-s) 0;font-family:var(--display);font-size:1.22rem;color:var(--texto)
}
.prosa table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.93rem}
.prosa th,.prosa td{padding:11px 14px;border-bottom:1px solid var(--linea);text-align:left}
.prosa th{color:var(--oro);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.09em}
.prosa td{color:var(--texto-2)}

.tabla-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:var(--ancho-texto)}
.faq details{background:var(--superficie);border:1px solid var(--linea);border-radius:var(--radio);transition:var(--trans)}
.faq details[open]{border-color:var(--granate)}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--granate-claro);font-size:1.5rem;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:"–"}
.faq .faq__r{padding:0 22px 20px;color:var(--texto-2);font-size:.97rem}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:linear-gradient(135deg,#2a0e16,#160a0e 60%);border-top:1px solid var(--linea)}
.cta__contenido{position:relative;z-index:2;padding-top:82px;padding-bottom:82px;text-align:center}
.cta__contenido p{color:var(--texto-2);max-width:56ch;margin:0 auto 2em;font-size:1.05rem}
.cta .btn-fila{justify-content:center}

/* ---------- formulario ---------- */
.form{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
.form .campo--ancho{grid-column:1/-1}
.campo{display:flex;flex-direction:column;gap:7px}
.campo label{font-size:.83rem;font-weight:700;color:var(--texto-2);letter-spacing:.02em}
.campo input,.campo select,.campo textarea{
  background:var(--superficie);border:1px solid var(--linea-fuerte);border-radius:var(--radio-s);
  padding:13px 15px;color:var(--texto);font:inherit;font-size:.95rem;transition:var(--trans);width:100%;
}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--granate);box-shadow:0 0 0 3px var(--granate-suave)}
.campo textarea{min-height:130px;resize:vertical}
.campo--check{flex-direction:row;align-items:flex-start;gap:11px}
.campo--check input{width:18px;height:18px;flex-shrink:0;margin-top:3px;accent-color:var(--granate)}
.campo--check label{font-weight:400;font-size:.85rem;color:var(--texto-3);line-height:1.5}
.campo--check a{color:var(--granate-claro);text-decoration:underline}

/* ---------- pie ---------- */
.pie{background:var(--negro);border-top:1px solid var(--linea);padding:72px 0 0;font-size:.92rem}
.pie__rejilla{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.pie h4{color:var(--oro);font-size:.75rem;text-transform:uppercase;letter-spacing:.14em;margin-bottom:16px}
.pie ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.pie a{color:var(--texto-3);transition:color var(--trans)}
.pie a:hover{color:#fff}
.pie__intro p{color:var(--texto-3);font-size:.92rem;max-width:36ch}
.pie__logo{margin-bottom:18px}
.pie__logo svg{height:34px;width:auto}
.pie__contacto{display:flex;flex-direction:column;gap:8px;margin-top:18px}
.pie__contacto a{color:var(--texto-2);font-weight:600}
.pie__legal{border-top:1px solid var(--linea);padding:22px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:var(--texto-3);font-size:.83rem}
.pie__legal ul{flex-direction:row;gap:18px;flex-wrap:wrap}

/* ---------- flotante whatsapp ---------- */
.wa-flota{
  position:fixed;right:18px;bottom:18px;z-index:70;width:56px;height:56px;border-radius:50%;
  background:#1f8f4e;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 28px rgba(0,0,0,.45);transition:var(--trans)
}
.wa-flota:hover{transform:scale(1.08)}
.wa-flota svg{width:28px;height:28px;fill:#fff}

/* ---------- cookies ---------- */
.cookies{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:90;background:var(--superficie);
  border:1px solid var(--linea-fuerte);border-radius:var(--radio);padding:20px 22px;box-shadow:var(--sombra);
  display:none;gap:18px;align-items:center;flex-wrap:wrap;max-width:820px;margin:0 auto;
}
.cookies[data-ver="si"]{display:flex}
.cookies p{font-size:.87rem;color:var(--texto-2);flex:1 1 320px;margin:0}
.cookies a{color:var(--granate-claro);text-decoration:underline}

/* ---------- utilidades ---------- */
.centro{text-align:center}
.oculto{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.saltar{position:absolute;left:-999px;top:0;background:var(--granate);color:#fff;padding:12px 18px;z-index:200;border-radius:0 0 8px 0}
.saltar:focus{left:0}
:focus-visible{outline:2px solid var(--oro);outline-offset:3px;border-radius:4px}
.mt-l{margin-top:44px}
.mt-m{margin-top:28px}

/* ================================================================
   RESPONSIVE — en móvil todo va a una sola columna
   ================================================================ */
@media (max-width:1024px){
  .nav{display:none}
  .btn-menu{display:block}
  .rejilla--4{grid-template-columns:repeat(2,1fr)}
  .pie__rejilla{grid-template-columns:repeat(2,1fr);gap:34px}
  .duo{gap:34px}
}
@media (max-width:860px){
  .duo{grid-template-columns:1fr}
  .duo--inv .duo__media{order:0}
  .rejilla--3{grid-template-columns:repeat(2,1fr)}
  .seccion{padding:64px 0}
  .banda__contenido{padding:64px 0}
}
@media (max-width:640px){
  body{font-size:16px}
  .contenedor,.contenedor-estrecho{padding:0 18px}
  .rejilla--2,.rejilla--3,.rejilla--4{grid-template-columns:1fr}
  .pie__rejilla{grid-template-columns:1fr;gap:30px}
  .form{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero__contenido{padding-top:96px;padding-bottom:56px}
  .hero h1{max-width:none}
  .btn{width:100%}
  .btn-fila{flex-direction:column;width:100%}
  .btn-fila .btn{width:100%}
  .tiras div{flex:1 1 100%;padding:8px 0}
  .portadilla__contenido{padding-top:58px;padding-bottom:48px}
  .seccion{padding:56px 0}
  .cta__contenido{padding-top:60px;padding-bottom:60px}
  .pie__legal{flex-direction:column;gap:12px}
  .pie__legal ul{flex-direction:column;gap:9px}
}